Question

I’m really new to ASP.NET and javascript so I’m rather lost on how to do a lot of things. But what I really need to do right now is this:

The website I’m working on has a link that makes makes an http request, and is located inside a grid, as such:

<a  target="_blank" href='<%# Eval ( "ServerURL","{0}Thing.aspx") %>'>

What I need to do is write a javascript function at the top that takes the place of this line, so that I can check another element in the grid, and only make the http request when that other element is of a certain value. I tried rewriting it as such:

<a  target="_blank" href='javascript:Call(<%# Eval ( "ServerURL","{0}Thing.aspx") %>);'>

and the function Call at the top:

<script type="text/javascript">
    function Call (url){
        return url;
    }
</script>

But all it does is open a new tab with about:blank for the url. What is it that I should be doing here?

Answer 1

rewrite it to

html

<a  target="_blank" onclick="return Call(this);" href='<%# Eval ( "ServerURL","{0}Thing.aspx") %>'>

javascript

<script type="text/javascript">
    function Call (elem){
        // make your checks here based on the element you clicked (the elem parameter)
        if (checks_passed)
         {
           return true; // when the onclick handler returns true the link action is followed
         }
        return false; // when the onclick handler returns false the action is cancelled
    }
</script>

demo at http://jsfiddle.net/efQ6R/